How To Replace A Gas Hot Water Heater

DIY Water Heater Installation

You will need to have a shower temperature of between 104 and 106 degrees to get the most out of it. When you take a shower, you will consume 2.6 gallons of water every minute. A minimum of a 60-degree increase in temperature is required, and your tankless hot water heater should be capable of producing 5.2 gallons per minute in order to guarantee that you have the proper temperature in your home. Due to the fact that undersizing your system may leave you with insufficient hot water to complete the tasks at hand, you will need to pay careful attention to this.

Suppose you want to take two showers at the same time, or you want to use many sinks at the same time.

If you are taking two different showers at the same time, you will need at least 5 gallons of water from your tankless water heater to keep up.

This means you’ll want to make sure your heater is the right size.

  1. If you want a higher temperature rise per GPM of water, you may want to consider obtaining a gas tankless hot water system here.
  2. For more information on How To Size A Tankless Water Heater, contact the Original Plumber right away.
  3. They may sit down with you and go through your consumption rates to evaluate if it would be more cost effective for you to purchase an electric tankless hot water heater or a gas tankless hot water heater, depending on your situation.
  4. Due to the difficulty and risk of water heater installation, it is usually recommended that it be handled by specialists.


When your water heater begins to leak, you must act quickly to have it repaired or replaced. We’ll teach you how to set up your own natural gas water heater in less than a day’s time. Even if you do not require a new water heater at this time, it is likely that you will require one within the next few years. Water heaters typically have a lifespan of seven to fifteen years. If yours is beginning to show signs of wear, this post is also for you. If you’re familiar with basic equipment and have a little expertise soldering copper, replacing a water heater shouldn’t be too tough.

Tools Required

  • Water and gas piping
  • Discharge pipe
  • Fittings
  • Pipe thread compound
  • Pressure relief valve
  • Solder. Ventilation pipe and connections
  • Pressure relief valve.

Getting Started Installing Your New Hot Water Tank

In this example, we’re swapping out a natural gas water heater for an electric water heater. The processes for replacing a propane water heater are identical to those for replacing an electric water heater, and the steps for replacing both are comparable. In any event, when it comes to arranging a water heater replacement, it’s best to be cautious. Call your local department of inspections and inquire as to whether or not you require a permit. Also, be certain that your work is checked by a plumbing or electrical inspector.

Plumbers normally charge between $45 and $65 per hour and can complete the installation of a water heater in a day or as little as 6-8 hours.

Gas water heaters with particular venting systems are also available, although they are more costly. However, because they are more difficult to install, we will not be covering them in this article.

Water Heater Parts and Breakdown

  • Fire pipe, cold water shutoff valve, draft diverter, temperature and pressure relief valve, overflow pipe, hot water outlet, anticorrosion anode rod, dip tube, elements, insulation, drain valve, thermostat or control valve, burner, thermocouple, gas supply valve, and more.

When to get a new water heater

When the tank of your water heater leaks, your water heater is out of commission. An indication that your water heater needs to be replaced is a gradual drop beneath the unit, which commonly manifests itself as a trail of discolored water. This indicates that the steel tank has corroded through and will be unable to be repaired. Other symptoms, such as little or no hot water, are typically indicative of other water heater repair issues that may be resolved by you. If you notice a drop, make a plan to get the water heater replaced as soon as possible.

  1. New water heaters are sent with detailed installation instructions as well as several cautions to ensure that the gas, electrical, and other connections are handled properly.
  2. However, you should be aware that you will be dealing with natural gas, propane, or electricity, all of which are potentially harmful.
  3. And, after you’re finished, get your work examined.
  4. You should explain to your local plumbing inspector how you want to install your new connections, including the sorts of materials you intend to use.

Figure A: Gas Water Heater Details

Mr. Fix-It-Up-For-The-Family See the Additional Information section at the end of this article for instructions on how to print this image.

Figure B: Connections for Steel and Plastic Pipe

Mr. Fix-It-Up-For-The-Family Water supply pipes in many residences are made of galvanized steel or polyvinyl chloride (CPVC). Replaceable galvanized steel pipes are quite difficult to come by. Using our photo series, we propose that you return the pipes to their original tees and screw on a plastic-lined galvanized nipple before finishing the connections with copper. Plastic tubing should be kept at least 6 inches away from the vent and tank due to the possibility of heat accumulation. Using a specific connection, you may make the transition from plastic to copper.

Flexible copper connectors are less difficult to install than solid copper connectors, which is especially important when the existing pipes and tank inlets do not match up.

If yours does, take extra care not to pinch or kink them when handling them.

Project step-by-step (12)

Turn off the gas to the water heater by twisting the shutdown valve a quarter turn away from the water heater. When the handle is turned off, it should be at a straight angle to the pipe. Also, turn off the main water supply and drain the pipes by opening a tap on the lowest floor of the building. Step No. 2

Drain the water in the tank

Remove gas from the water heater by turning the shutdown valve a quarter turn away from the water heater’s location.

In order for the handle to be at a right angle to the pipe, it must be turned off. Also, turn off the main water supply and drain the pipes by opening a tap on the lowest floor of the house. Procedure Number Two (Secondary)

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Complete your do-it-yourself tasks like an expert! Become a subscriber to our newsletter! Do It Right the First Time, and Do It Yourself! Step number three.

Cut off the water lines

The vent pipe should be moved to the side once it has been unscrewed from the vent hood. After that, using a tube cutter, cut the hot and cold water lines. For galvanized pipe, remove the unions and, if you have them, remove the nuts on the flexible connections as well. Move the old water heater to the side of the room. Step number four.

Attach the relief valve

Teflon tape should be used to seal the threads of the new temperature and pressure relief valve (three turns). With a pipe wrench, tighten it inside the tank until it is completely sealed. Glue a copper discharge pipe to the wall (see Fig. A for routing details). Step number five.

Attach pipe assemblies

Solder fresh copper adapters to 6-in. lengths of 3/4-in. copper pipe and screw the assemblies into the hot water outlet and cold water inlet ports on the top of the tank’s tank’s tank’s tank. Make use of short, plastic-lined nipples to protect your pipes from galvanic corrosion, especially if you have hard water or if they are required by your local building standards. Step 6: Organize your thoughts and feelings about the situation.

Attach the water lines

Slide the new water heater into position, recut or lengthen the old tubing to connect it to the new, and solder the tubing together using copper slip couplings to complete the installation. If the tubing does not line up properly, use pairs of 45-degree elbows to adjust the alignment of the lines. Step 7 – Organize your time and resources.

Reattach the vent

Reconnect the vent if necessary. Place it securely over the draft hood and secure it with three 3/8-in. No. 6 sheet metal screws to hold it in place. Prepare the holes by drilling them beforehand. Before turning at the first elbow, the vent should rise at least 12 inches vertically from the floor. In this eighth step, you will learn how to use a comma to separate the words “and” and “and not.”

Use two wrenches to attach the gas line

Reconnect the gas line if necessary. Pipe joint compound should be applied to the threaded ends before screwing the first nipple into the gas valve. To minimize straining the valve, use two pipe wrenches at the same time. Reassemble the remaining nipples, concluding with the union at the end of the process (Photo 2). Then, in order to fill the tank, perform these four steps: To check for leaks, perform the following steps: (1) cut off the main water valve; (2) re-connect the water at the main shutoff; (3) open the cold-water valve on the water heater (but do not close it); and (4) turn on a nearby hot-water faucet until water flows out.

Check for backdrafting

The majority of water heaters rely on a natural airflow to carry combustion emissions up the chimney and out of the building. If the draft does not operate, the fumes, which may contain lethal carbon monoxide, will be released into your home and cause you to become sick. Check the draft when you’ve finished installing everything. Close all of your external doors and windows, and put on the exhaust fans in your kitchen and bathroom. Continue to run a hot water faucet until you hear the gas burner in your water heater come to life.

Ideally, the smoke should be drawn upward through the vent pipe. If the smoke does not draw, this indicates that the burner’s fumes are not escaping. Turn off the gas supply to the water heater and contact a certified plumber to diagnose and remedy the problem. Step number ten.

Check for leaks

Check for leaks by turning on the gas and squeezing a 50-50 combination of dishwashing liquid and water over the connection points. If there are bubbles in the mixture, you have a leak. Joints that are leaking should be tightened or reconnected. When you’re finished, wipe the joints down with a clean cloth. Make an appointment with the plumbing inspector to have them go at your work. Follow the how-to instructions that are included with the photographs to ensure that the connections are secure.

Light the pilot light

The pilot light should be turned on in accordance with the manufacturer’s instructions. (When using an electric water heater, turn on the electricity at the main panel after your work has been checked by the electrical inspector). Once you’ve finished, adjust the temperature to 120 degrees Fahrenheit according to the installation instructions. The pilot light in the new water heater should be lit, then the temperature setting should be adjusted.

Installation Details for Electric Water Heaters

Follow the manufacturer’s instructions for lighting the pilot light. For electric water heaters, turn on the power at the main panel after your work has been checked by an electrician. Finally, according to the installation instructions, set the temperature to 120 degrees F. To begin using your new water heater, turn on the pilot light and change the temperature setting as needed.

How to Dispose of a Water Heater

In this video lesson, Jeff Gorton, an editor at The Family Handyman, will show you how to remove and dispose of a water heater in the proper manner. He will also demonstrate a simple method of transporting a water heater out of your home, even if you are working on your own.

These tips will make your work go faster and easier:

  • To avoid modifying the length of your water, gas, or electrical lines, take note of the height of your existing water heater and get a new one that is the same height
  • On older water heaters, the drain valve (Photo 2) frequently becomes clogged. Please be patient if the water drains slowly. WARNING: The temperature is really high! TIP: Turn off your water heater two hours before you want to use it to enable the water to cool. Water heaters are around 150 pounds in weight. When you’re moving the old one out and wheeling the new one in, you’ll need a strong partner or a dolly to assist you. Ordinarily, garbage collection agencies charge approximately $25 to remove the old one. Before you begin, go to a plumbing supply or hardware store, or a home center, and purchase the equipment and materials seen below. Check the sizes of the water supply pipes (the majority will be 3/4 in., as shown in our photographs) and purchase the fittings that are the proper size. If you have everything you need, you should be able to complete the work in four to six hours (provided there are no major problems!). This safety mechanism, which controls tank pressure and prevents it from bursting, is located in the tank’s pressure relief valve assembly (Photo 4). It is necessary to include a fresh one with each installation. The discharge pipe must be kept clear of impediments in order for the valve to function correctly (see Fig. A). Use 3/4-in. plastic-lined nipples (about $2 each
  • Photo 5 and Fig. A) to attach other metals, mainly copper tubing to the steel tank, in areas where the water is highly mineralized or where it is needed by municipal laws. This has the effect of slowing rusting. In order to avoid heating the tank itself during soldering, solder the copper fittings before screwing them to the tank (Photo 5)
  • Slip couplings should be used to link the existing and new water lines (Photo 6). (Photo 6). They do not have an internal stop, in contrast to normal couplings. Alternatively, you may slip them on, align the copper tubing, then slide them back and center them over the junction
  • However, the new inlets and outlets on the tank don’t always line up with the old supply lines, and vice versa. If required, solder in a pair of 45-degree fittings to ensure that each line is offset. While you’re doing it, you should also replace the old cutoff valve with a new ball valve (Photo 6). The diameter of the vents is determined by the amount of heat produced by the water heater. In order to achieve the ideal draft, you may need to raise or reduce the ventilation size. CAUTION: If you’re not sure whether or not your chimney has a liner, consult with a plumbing inspector. Make gas connections using solid steel pipe (Photo 8) or soft copper tubing with flare fittings (Fig. A). Both are more dependable and less expensive than flexible stainless steel connections, which are not usually allowed in some applications. For the same reasons, rigid copper water supply lines should be used rather than flexible copper water supply lines
  • If your water heater replacement is located in a location where leaking might cause damage to the floor or other elements of the home, lay a pan of an appropriate size beneath it (metal for gas water heaters). a drain tube that connects to a home drain or another suitable site must be installed in the pan (outdoors where permitted). If a leak might cause damage to the flooring, the discharge tube for the temperature and pressure relief valves must also connect to a drain. If routing is a problem, consult with your local plumbing inspector about possible solutions. Special straps should be used to secure your water heater to the wall if you reside in an earthquake-prone location (Fig. A
  • Available at plumbing stores and home centers). If they are necessary, your plumbing inspector will inform you of this. Ensure that the new water temperature setting does not exceed 120 degrees Fahrenheit to avoid scorching
See also:  How To Open Rinnai Tankless Water Heater

Additional Information

Water Heater Maintenance: How to Extend the Life of Your Hot Water Heater How to Repair a Leaking Water Heater Water Heater Installation Instructions on how to replace the TPR valve on a water heater Solar Water Heater Made at Home How to Repair or Replace Water Heater Dip Tubes That Are Defective How to Flush a Water Heater (with Pictures) The Process of Purchasing a New Water Heater 7 Myths About Tankless Water Heaters That You Should Never Believe The Advantages and Disadvantages of Tankless Water Heaters

How to Install a Gas Water Heater

You may save money on your utility expenses by installing a new gas water heater. How to do it is demonstrated in our video and step-by-step tutorial. Please keep in mind that product pricing, availability, and item numbers may differ from market to market.

Before You Begin

Before committing to a full replacement, conduct a brief maintenance inspection to determine the root cause or the necessity for a new water heater. If you follow the methods outlined below and find that replacement is required, make sure to verify your local building codes before proceeding to confirm that you are in compliance. And, if you’re still not sure, consult with a professional.

Check Water Pressure

The water pressure in your house is critical for all of the equipment that use water.

A decrease in pressure reduces the stress placed on plumbing systems and helps to increase the lifespan of appliances and fixtures. When it comes to pressure monitoring, you might want to think about using an inline pressure gauge.

Add an Expansion Tank

For all water-using equipment, the water pressure in your home is essential. Having less pressure puts a less strain on plumbing lines and helps to improve the lifespan of appliances and fixtures. When it comes to pressure monitoring, you might want to think about using an inline gauge.

Removing the Old Gas Water Heater

Installing a new gas water heater is simple if you follow these procedures. Exercise caution when unpacking and unwrapping your new water heater to avoid causing damage to it. Water heaters are heavy; while transporting the appliance, enlist the assistance of a friend, an appliance dolly, and/or a hand truck.

Preventing Scalds

Even with the temperature gauge set at 120 degrees, the risk of scalds remains a possibility. Children, the elderly, and individuals with delicate skin are particularly at risk of developing skin cancer. Consider adding thermostatic mixing valves to save people from being hurt. Installed at the point of use faucet, fixture, or appliance, a thermostatic mixing valve regulates both the volume and temperature of water by connecting to both the hot and cold water supply lines at the same location.

How to Install or Replace a Gas Water Heater

Overview of the Process of Installing a Water Heater

  • Step 1: Measure and prepare the available area. Water should not be turned on in Step 2. Step 3: Empty the tank. Disconnect the gas and water lines in the fourth step. Removing the overflow pipe and the pressure release valve is the fifth step. Step 6: Vacuum the floor
  • Step 7: Attach the flue hat. Step 8: Solder the gas line together. Step 9: Turn on the pilot light.

There are few things that are more frustrating than a broken water heater. When there is no hot water, there are no clean dishes or clothing to wash, and you have to take chilly showers. You should consider replacing your water heater if you’re having troubles with your current unit. DIYing the replacement of your air conditioner might save you money. This Might Also Be of Interest to You: What is the approximate cost of repairing or replacing your water heater? When shopping for a new water heater, it is important to understand that water heater installation is not a task for inexperienced individuals.

Furthermore, if you make a mistake throughout the procedure, you might do harm to your home.

Knowing how to connect the water and gas lines to the new heater, as well as how to start the pilot light, will be necessary.

Can I Install a Gas Water Heater Myself?

A faulty water heater is one of the most frustrating things that may happen in your home. When there is no hot water, there are no clean dishes or clothing to wash, and there are no hot showers for you to take either. You should consider replacing your water heater if you’re having troubles with your current one. By changing your unit yourself, you can save some money. Additionally, you may be interested in the following information: Repairing or replacing your water heater can be a costly endeavor.

If you don’t know what you’re doing, you run the risk of injuring yourself while attempting to install the product.

Identifying the type of gas water heater you have, selecting a new unit, and removing the old unit are all steps in the replacement process.

This includes being able to connect the new heater’s water and gas lines and lighting the pilot light, among other things. Continue reading if you’re up for it.-

What Kind of Water Heater Do I Own?

To correctly install a new water heater, you must first remove the old one that is currently installed. In order to remove a gas water heater, you will have to put up more work than if you are using an electric water heater. Electric water heaters are distinguishable from their gas counterparts by the fact that they are powered by a cord and are not linked to a gas line. Because each water heater is slightly different, it’s a good idea to make a note of the make and model of your water heater as well.

Choosing the Right Water Heater

Pick whether you want to fuel your water heater with natural gas or electricity, and then decide whether you want a tank-style water heater or a tankless water heater. The choice between gas and electric will be the more significant one since it will have the most influence on your monthly energy bill and maintenance expenditures.

Electric Water Heaters

Electric water heaters are the most straightforward to set up. In addition, they are less expensive to acquire. However, there are certain disadvantages to using them. Here are some pros and downsides to take into consideration:

  • Electric water heaters require less maintenance than gas water heaters since they are not linked to a natural gas line. As a result, there is no danger of gas leaks, which can result in explosions or carbon monoxide poisoning. When it comes to the water heater itself, you will save money. Power, on the other hand, is more expensive than natural gas, therefore you will see an increase in your electricity costs as a result of this saving. If you lose power, you will be without hot water for a period of time since the water heater requires electricity to work. Compared to its gas-powered equivalents, electric water heaters heat water at a slower rate. Electric water heaters with high efficiency are not available on the market.

Gas Water Heaters

Installing a gas water heater will necessitate the use of more advanced skills and will take longer than installing an electric water heater. If you’re thinking about installing a gas water heating system, there are some advantages and disadvantages to consider. These include:

  • Natural gas is significantly less expensive than electricity. In order to save money on your utilities, this is the best option for you
  • Units fuelled by natural gas heat water fast. When compared to an electric water heater, a tankless gas water heater is far more effective and efficient. If your electricity goes out, your water heater will continue to run normally without interruption. During storms or other power outages, this may be quite beneficial. Gas water heaters are more costly to install than electric water heaters. However, because they are less expensive to operate, the money you save on your power bill will more than equal the original cost over time.

In addition, there are safety risks associated with having a gas system. A gas leak may necessitate the hiring of a professional to solve the issue swiftly, and you may be exposed to carbon monoxide and combustible gas as a result of the leak. It is possible to alleviate some of the safety issues associated with using a gas water heating system by installing carbon monoxide detectors in your house. The installation, inspection, and maintenance of your equipment should be handled by a qualified specialist.

Check your connections on a regular basis so that you are aware of when you need to make repairs.

The fact is that they are more cost-effective in the long term.

Tankless Water Heaters Vs. Storage Water Heaters

The decision on whether or not to go with a tankless unit is dependent on the amount of demand you intend to place on the unit as well as the environment in which you reside. Water heaters with no tanks take up a fraction of the area required by tanks with tanks, but they are unable to store any hot water. However, after the water is heated, they can produce around four gallons of hot water every minute, which is a significant increase over the previous model. Despite the fact that this may appear to be a lot, it may not be enough if you’re also running the shower, dishwasher, and washing machine at the same time.

  1. Another disadvantage of living in a colder region is that cold water takes longer to heat, so if you’re starting with water that comes in from chilly pipes, it will increase the amount of time it takes to warm the water.
  2. Tank systems are significantly more common, and the majority of homes are already equipped to accommodate them.
  3. An unvented tanked system works by continuously heating the water in your storage tank, allowing you to have hot water on demand anytime you turn on the water faucet.
  4. The majority of individuals choose for a tank with a size between 40 and 55 gallons.

Because the water in the tank is always hot, you waste a significant amount of energy heating water that may or may not be utilized, making these systems less environmentally friendly than other options. Additional Related Articles:

  • What is the best way to drain a water heater? Is it a tankless job? Determine whether or not a tankless water heater is appropriate for your home. What is the procedure for turning on my water heater? Don’t Forget to Flush Your Toilet! The following is a 6-Step Guide for Flushing Your Gas or Electric Water Heater: Instructions on how to relight the pilot light on your water heater

How Do I Install a Gas Water Heater?

When dealing with gas lines, the most important thing to remember is that safety comes first. Make certain that your gas and water are totally turned off while you are working in order to avoid mishaps and serious injury. Before using the new system, check to see whether there are any leaks. If you are not familiar with all of the safety standards for installing a water heater, we do not advocate attempting to do it yourself. An installation guide for the most popular form of water heater, a gas unit with a storage tank, is provided in this step-by-step instruction.

Step 1: Measure and Prepare the Space

The most effective method for accomplishing this is to measure the unit you presently own and then purchase a new water heater that matches those measurements. Make certain that the new water heater complies with any applicable local laws or ordinances so that you don’t install it only to discover that you have to remove it because it doesn’t meet the requirements.

Step 2: Cut Off the Water Supply

Close the water main shutoff valve, which will shut off the water supply to your whole home. In addition, turn the water control valve on the unit itself to the off position. Then, turn on all of your faucets around your house to drain as much hot water as you possibly can from your system. Keep the faucets open while the old unit is being removed.

See also:  How To Change A Gas Water Heater

Step 3: Drain the Tank

Drain the tank by attaching a hose to the drain valve and turning it on. You can direct the water to a location outside your house, or you can dump it into buckets or a drain in your home that feeds to the sewage treatment plant. Even though this procedure may take a few minutes or longer, it’s critical to ensure that the tank is completely empty before proceeding.

Step 4: Disconnect the Gas and the Water

A tubing cutter will be required for this stage, if the lines have been soldered together before. Because your water should already be turned off, begin by turning off the gas to the water heater. If you don’t notice any shutdown valves near the heater, you’ll have to turn off the main water supply to the house instead. If you sand the pipe before disconnecting it, it may be easier to solder the new pipe when you reconnect it. Remove the gas pipes, but leave the tank tee and sediment trap in their original locations for safety reasons.

Step 5: Remove the Overflow Pipe and Pressure Release Valve

These will be linked to your newly purchased unit as well. It will be necessary to disconnect your old water heater from the gas exhaust, but you will be able to keep the vent hood in place. Because it will be so hefty, removing your water heater may prove to be a difficult task. Make certain that you understand how and where to dispose of it before moving anything else around. More information on how to dispose of old water heaters may be obtained by contacting your local trash management organization.

Step 6: Clean the Floor

All of them will be linked to your new unit. Your old water heater must be disconnected from the gas exhaust, but the vent hood should remain in place. Because it will be so hefty, removing your water heater may prove to be a difficult task.

Before you relocate anything, you should make certain that you understand how and where to discard it. For additional information on how to dispose of old water heaters, contact your local trash management organization.

Step 7: Hook Up the Flue Hat

Install the heat trap fittings and water line connections in the reverse sequence of the removal: first connect the flue hat to the gas exhaust vent, then connect the heat trap fittings and water line connections. In the event that you do not properly install them, your water flow will be disrupted, and hot water will not be delivered to your plumbing system. Make sure you’re feeding the lines in the correct direction by following the directions on the lines.

Step 8: Solder the Gas Line

It will be necessary to solder the pipe to rejoin it if you used a tubing cutter on the gas line during the removal process. It’s also important to reconnect the water supply line. After that, you’ll need to reinstall the pressure relief valve to complete the process. At this stage, you will need to connect the gas line and check it for leaks to ensure that there are no problems. Wash the area with soapy water and check for bubbles if there is any sign of gas leakage.

Step 9: Light the Pilot Light

Finally, re-ignite the pilot light and re-connect the water supply. Make careful to turn off any faucets that were left open prior to this procedure.

Is It Difficult to Replace a Gas Water Heater?

Installing a gas water heater is not normally a do-it-yourself project for most homes; you cannot learn how to install a gas water heater in a day or two. If you are not adequately equipped and have no prior plumbing knowledge, doing this procedure can be highly risky. There are a plethora of possibilities for things to go wrong. In addition, you must ensure that your system complies with all applicable building requirements in your area. We recommend that you use a professional plumber for installation since a plumber will be able to install your unit quickly, will frequently be able to dispose of the old unit, and will be familiar with the standards and regulations that control what sort of system you are permitted to install.

How Long Does It Take to Install a Gas Water Heater?

A competent plumber can generally perform the installation in less than two hours with the proper tools. Given the weight of a tank-style water heater, a plumber may enlist the assistance of a coworker in order to complete the removal successfully. It’s possible that you won’t be able to move the unit on your own. If you have no prior expertise, the procedure might take several hours — or possibly all day — since you will need to spend a significant amount of time making sure you understand where everything is supposed to go.

Gas Water Heater Installation: A Step-by-Step DIY Guide

Gas water heater installation may appear to be a job best left to the professionals, but it is not quite as complex as you may assume. Certainly, hiring a professional to complete the work for you is the most convenient option to complete the task at hand. Installing your gas water heater, on the other hand, is a terrific do-it-yourself job if you want to save a little money while still gaining a sense of success. In most cases, it’s advisable to go with the same fuel type (gas or electric) when purchasing a new water heater unless there’s a compelling reason to do otherwise.

They can provide you with information about the local plumbing codes as well as whether or not you will require a municipal permit.

If you hire a professional, you won’t have to worry about this since they will remove your old water heater from your property for you. It is not difficult, however, to replace a gas water heater if you like DIY projects and would want to save money in the process.

Preparing to Install a Gas Water Heater

The chances are considerable that your water heater has reached the end of its useful life and will need to be replaced if it is more than 10 years old. Prior to purchasing a new water heater, however, it is worthwhile to attempt to resolve the issue first using the methods described above. If your water heater is leaking, it is possible that the problem can be resolved. If, on the other hand, the source of the leak is the tank itself, you will need to have the device repaired or replaced.

Tools and Supplies Needed

  • Examine the label on the back of your old water heater. It should include information on the annual energy consumption as well as the tank capacity. Having both of these details handy while searching for a new water heater is a great idea. Before removing your old water heater, we recommend that you examine your water heater vent system to ensure that it is in excellent operating order and that it is functioning correctly. Remove your old heater by disconnecting it and draining it, then removing it with a hand truck. If there is an excessive quantity of sediment buildup in your water heater tank, the drain valve may get clogged. This article will guide you through the process of draining the tank. Take caution when handling the vent pipe. In good condition, you may use it with your new water heater to save money on your energy bills. This is also possible if the Temperature/Pressure Discharge Pipe is in good condition
  • However, this is not always the case. If your water heater was plumbed with copper pipes, you may need to use a tubing cutter to cut the copper pipes in order to repair them. Keep as much pipe as possible intact if this is the case.

Find Local Plumbing Professionals

How to Install a Gas Water Heater

Follow these step-by-step instructions to learn how to install a gas water heater, and then watch the video to learn more.

Install Earthquake Straps

The first step is to use a tape measure to determine the placement of the two earthquake straps.

  • In the case of an earthquake, these seismic straps will aid to support the tank against the wall, so preventing it from tumbling over. Measure the water heater from the ground up and mark the wall with the relevant measurements: The upper earthquake strap should be positioned a few inches below the T P Valve on the T P Valve assembly. The lower strap should be positioned a few inches above the gas regulator, and vice versa.

By measuring from the ground up and noting the height with a pencil, you can determine where the picture should be hung on the wall. The seismic strap bracket should be mounted to the wall. Make certain that the screw “catches” a stud. When not in use, the seismic strap should be placed next to the tank. In order to properly tighten the screws, it may be required to “swing” the bracket 180 degrees. Install the new water heater in its proper location. Placing the water heater in a drain pan and connecting the existing piping to the inlet and outlet connections of the water heater are the next steps.

It is not necessary to secure the water heater with earthquake straps.

Connect the Water Supply

Step 2: Using a wire brush, clean the threads of the cold and hot water lines. Installing a ball valve on the coldwater supply line is strongly recommended if the system does not already have one. Connect the water supply lines for hot and cold water. Use caution while installing copper flexible water lines (as seen in the video), since they are prone to kinking if not handled properly. Using the procedure demonstrated in the video, loop the flex connection around many times. Leave enough slack in both the hot and cold water supply lines to allow for expansion and contraction of the vent area.

It is possible to extend the life of a water heater by using dielectric nipples to minimize corrosion between two dissimilar metals.

Sometimes they come pre-installed, but if not, we strongly advise that you get a complete set.

(See illustration) 24-hour plumbing service is available for emergencies.


Step 2: With a wire brush, clean the threads of the cold and hot water lines. The installation of a ball valve is strongly recommended if the coldwater supply does not already have one. Water supply lines should be connected between the hot and cold water sources. Use caution while installing copper flexible water lines (as seen in the movie), since kinking them might cause serious problems. The technique demonstrated in the video is used to loop the flex connection around. Allowing for some slack in the hot and cold water supply lines can help to keep the vent area free of debris.

A water heater’s life is extended by using dielectric nipples to minimize corrosion between two distinct metals.

Even though they are sometimes included, we strongly advise acquiring a complete set if you don’t already have one.

Installers should coat the threads with Teflon tape or pipe joint compound to avoid leakage during installation. (See illustration) Services available 24 hours a day, seven days a week The following three steps are required: repair, installation, and replacement.

Install the Vent Hood

Step 3Attach the vent hood to the top of the water heater, above the flue that runs through it. Remember to follow the directions that came with your water heater because the process differs from one manufacturer to another. To attach the vent hood in place, self-tapping sheet metal screws should be used.

Install the Vent Piping

4. If your vent pipe is not damaged, you should be able to reuse it with your new water heater. Consult your water heater’s owner’s handbook to determine the proper vent pipe diameter. If the suggested vent pipe diameter is greater than the diameter of the vent hood, a reducer should not be utilized. In order to begin assembling the adjustable vent pipe, insert one end into the water heater vent hood and join the remaining pipe components. Check the manufacturer’s instructions for your water heater to ensure that the diameter is proper.

This will allow the vent pipe to be aligned as closely as possible to a straight line.

To attach the vent parts to the water heater vent hood and to the other vent sections, use self-tapping sheet metal screws to fasten them together.

Check your local code to see if there are any restrictions.

Install the Gas Connection

Step 5Confirm sure the gas supply is turned off by turning it on and off again. Cleaning the pipe fitting on the supply pipe with a wire brush is then necessary. By opening and shutting the valve, you may flush the line. Remove the sticker from the water heater’s gas control valve and replace it with a plug. This is the location where the gas line will be connected. Remove the gas nipple from the flexible gas line by unscrewing it. Many places, particularly earthquake-prone ones, necessitate the installation of flexible gas lines.

  • Find a Local Plumber in your area.
  • The thread of the gas nipple is threaded with a paintpipe joint compound.
  • Use of gas plumbers tape, which is yellow and less dirty, is another choice; nevertheless, you should never use white Teflon tape since it is toxic.
  • It should be moderately restrictive.
  • We recommend that you tighten the nipple with two wrenches to avoid any damage.
  • Connect the gas flexible line to the gas supply line and the gas control valve on the water heater.
  • If required, make a loop out of the surplus line.
  • Turning on the gas should be avoided at all costs.
  • When you turn on the hot water faucet, you will be notified when the tank is full.
  • When water is running from the hot water faucet, this indicates that the tank is full.

Allow the water to run for a few minutes before turning it off. This will get rid of all of the air that is currently in the tank. As long as the tank is not completely filled and all of the air has been drained out of the tank and lines, the water will splutter.

Connect the Earthquake Straps

Seventh step: Wrap a pair of earthquake straps around the water heater and attach them together. Avoid pulling the straps too tightly; they should be snug but not too so. Then, using clips, secure the extra strap in place. Find Local Plumbing Professionals

See also:  How To Turn On Tankless Water Heater

Connect the T P Drain Pipe

Step 8If the T P drain pipe from your previous water heater is in good condition, you may be able to reuse it. However, it is possible that you will need to construct a new T P drain pipe. To do this, use a tube cutter to measure and cut a copper pipe. Put a bucket underneath the T P drainage pipe if you do not have a floor drain installed. The end of the drain pipe should not be more than 6 inches above the ground or the bucket it is connected to. Turn on the gas supply valve. To ignite the pilot, go to the owner’s handbook for your water heater.

  • Place the lower dial on the gas regulator to ” Pilot Lighting ” and then turn the control knob on the gas regulator to ” PILOT ” mode to complete the process.
  • Once you have waited a few seconds, click the ignitor button while simultaneously pressing the control knob to start the engine.
  • Another type of sight glass will allow you to visually inspect whether or not the flame has caught.
  • If the flames were to ignite:
  • Press the control knob for 45 to 60 seconds in a continuous motion. After releasing control knob, double-check to see if the pilot is still glowing. To switch on the pilot if it is still lighted, move the control knob to the ON position.

Lower the dial to the temperature you choose for your drinking water. As a starting point, make use of the manufacturer recommended configuration. The ideal temperature setting is 120 degrees.

Test Gas Lines for Leaks

Step 10: Check for gas leaks by spraying any gas connections with a flammable liquid. You may either make your own solution (1 part dish detergent to 2 parts water) or buy Leak Detection Solution, which is available at most hardware stores. If you observe any “bubbling,” this is a sign that gas is leaking from the system. Applying a wrench to the loose connection and checking it again is recommended.

Watch the Video

After you’ve completed the installation of your gas water heater, there are a few further considerations to make. First and foremost, always check your vents to ensure that they are drawing correctly. If they are not, we urge that you seek the assistance of a specialist to fix the matter. You may learn how to do this by watching the video below.

Watch the Video

After a couple of hours, examine the T P discharge pipe for leaks or damage. The fact that the hose is pouring indicates that the pressure inside your tank is likely to be excessive. Turn off the gas supply and contact an expert as soon as possible. Keeping a carbon monixide detector close by your gas water heater is strongly recommended by us.

They are affordable and will inform you if you are in a potentially hazardous position. Repair and Installation of Water Heaters at the Lowest Possible Price Now is the time to call! Request Estimates from Pre-Approved Local Contractors

7 Reasons Why You Should Not Be Installing a Gas Water Heater Yourself

If you’re considering purchasing a fixer-upper or simply searching for methods to save money by doing home renovation tasks on your own, there are a variety of things you can do as a homeowner in terms of repairs and upgrades. Installing a gas water heater is one undertaking that you should be certain you understand well before embarking on it. The necessary information is required to complete this work correctly so that you do not harm yourself or others, cause expensive damage to property or become involved in a legal dispute later on down the road.

1. Installing a Gas Water Heater Yourself Is a Safety Issue

If you want to install a gas water heater on your own, you should be aware that there is a major safety risk associated with doing so. It is possible to sustain significant injuries due to improper installation. An explosion can occur if the temperature of the tank is incorrect, or if the pressure relief is unable to work properly owing to poor installation of the pressure relief. Scalding hot water may cause serious injury to you and people around you, and the subsequent water damage can result in thousands of dollars in repair expenses.

The fact that a water heater warranty is worthless if the installation is conducted by someone who is not a certified plumber should also be noted.

2. You Likely Don’t Possess the Skills and Knowledge of a Trained Professional

When it comes to installing water heaters, licensed plumbers have received extensive training and amassed a plethora of years of expertise. They are aware of the distinctions between installing a gas heater against an electric heater, or between installing a tank heater versus a tankless heater. In addition to an awareness of construction laws and state regulations, they also have an understanding of electrical concerns, as well as a comprehension of the surrounding carpentry. Apart from that, licensed plumbers are insured, which means that in the event that they make a mistake during the installation procedure, their plumbing firm will be held liable, rather than the homeowner.

3. You May End Up Buying the Wrong Size Heater

When it comes to installing a gas water heater on your own, size is important to consider first. The capacity of your tank is determined by the size of your tank. A 50-gallon water heater will provide plenty hot water for the ordinary 2.5 bathroom, 4 occupant person house. However, if you have a large family who does a lot of washing or takes a lot of long showers, a 60-gallon tank may be more appropriate for your needs. Generally speaking, larger residences necessitate the purchase of larger water heaters.

Even a 30- or 40-gallon tank will suffice for smaller households with only 2 or 3 occupants in most cases.

However, if you attempt to install a tank that is far smaller than you anticipated, it will be forced to run constantly in order to keep up with demand, causing it to wear out considerably more quickly than it would otherwise.

4. You Might Install Your Water Heater in the Wrong Location

The installation of a water heater cannot be completed in any location of your choosing. Water heaters are authorized to be built in certain areas in almost every city, according to local ordinance. The use of rooms as storage closets or in problematic places such as attics are examples of sites that are frequently not authorized. There must be an unobstructed path with continuous flooring leading to the water heater in order to use it. Please keep in mind that many newer kinds of water heaters are wider and taller than older versions, so be sure to measure accordingly.

5. Your Lack of a Plumbing Permit

There are many individuals who like to handle their own home improvement projects but are put off by the thought of having to go through the process of getting a permit, which includes installing a gas water heater yourself. When it comes to selling a house, some people avoid it because they don’t want their property taxes to go up. However, when the house is up on the market, the homeowner is compelled by law to declare any work that was done without a permit. Avoid the legal consequences of having work done without a permission by hiring a professional to assist you with the installation of your water heater.

6. Forgetting to Add the Drain Pan Underneath the Water Heater

According to state regulations, a domestic water heater must also be equipped with a watertight drain pan put beneath it. It is also necessary to have an associated drain pipe that leads outside the house in the event that the tank fails and water must be discharged into this pan. In addition, the pan must be corrosion-resistant and free of obstructions in order to perform properly. If you’re determined to install a gas water heater yourself, make sure you’re familiar with all of the laws and regulations established by your municipality.

7. The Water Heater Power and Gas Shutoffs Aren’t Visible

When installing a gas or electric water heater, no heat should be used until the heater is completely installed and completely filled with water. It is necessary to be able to see the shutdown switch clearly when installing the heater in order to ensure that the power remains off. You may simply use the nearest circuit breaker to make sure that the electricity is turned off completely. Applying heat to an empty tank is referred to as “dry firing,” and it might result in damage to the tank as a result.

Turn to the Pros

Instead of putting yourself through the effort of installing a gas water heater, turn to the plumbing professionals in your region who will complete the work swiftly and accurately without the hassle. Having served the Kansas City region for more than three decades, we are now ready to assist you as well. Make contact with us right away to schedule an appointment.

How to Replace a Water Heater

You may avoid the difficulty of installing a gas water heater by contacting the plumbing professionals in your region who will execute a thorough and timely job with little interruptions.

The Kansas City region has been our home for more than three decades, and we look forward to serving you as well. To schedule an appointment, please contact us immediately.

Steps for replacing a water heater

  1. Instead of putting yourself through the effort of installing a gas water heater, call on the plumbing professionals in your area to have the work done fast and correctly without the headache. Having served the Kansas City region for more than three decades, we are ready to assist you as well. Make contact with us right away to schedule your appointment.

Are you looking for further assistance with home repairs? A house warranty may be of assistance. The This Old House Reviews team has put up some in-depth guidelines that you can read here:

  • Home warranty providers that are the best
  • Reviews of American Home Shield, AFC Home Club, Select Home Warranty, and Choice Home Warranty are all available.


Water heaters are one of the most often used household appliances in households all over the world, especially in developing countries. In the winter, having a running water heater is nothing short of a gift. When planning a water heater installation project, one of the factors to take into consideration is the cost of the installation. It costs $400 to $900 to install a 40-50 gallon water heater with a tank, depending on the size of the unit. The cost of installing a tankless water heater typically ranges between $1,470 and $2,500 in most cases.

Tank vs. Tankless Systems

Among the most often utilized domestic equipment in households all over the globe, water heaters are one of the most common. Water heaters that work properly are a godsend during the cold months. When planning a water heater installation project, one of the factors to consider is the cost of the installation. It costs $400 to $900 to install a 40-50-gallon water heater with a tank, depending on the model. For a tankless water heater, the installation cost is typically in the $1,470 to $2,500 range.


Plumbers often bill between $45 and $65 per hour. In most circumstances, a plumber can complete the installation of a water heater in a single day (6-8 hours). You should anticipate to pay anything from $270 and $520 for this service. Water heaters that are difficult to access may require an additional 2 to 3 hours of installation time.

Type of Water Heater

Natural gas water heaters, propane water heaters, electric water heaters, and solar water heater systems are some of the most common types of water heater systems available on the market. Natural gas systems are well-known for being affordable ($500-$700 per system). For a natural gas water heater replacement in Alpharetta, you should budget between $400 and $550 dollars. Installing a new natural gas water heater system can cost you between $1,500 and $2,300 on average, depending on your location.

Although the average cost of installing an electric water heater is between $350 and $450, the initial cost might reach $500 if the installation is complicated due to structural issues.

Additional Considerations

If you wish to replace an old water heater, you should budget an additional $500 to the entire cost. Purchasing new piping will be necessary if your existing water heater pipe is broken or not compatible with the new system. New piping will cost between $8 and $10 per linear foot. Check with your plumbing contractor in Alpharetta to see whether you are required to obtain permits for a new water heater installation. Fletch Barney is the final stop in your hunt for a plumbing specialist. We have earned a reputation as one of the most dependable plumbing companies in Alpharetta.

Whether you are experiencing a water heater problem in Alpharetta or want sewage line repair services in Alpharetta, we have you covered. Call us at 770-333-3031 if you’d like to speak with a professional about your project.

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